Allen-Bradley 1756-N2 ControlLogix Empty Slot Filler Module
$123.00
$320.00
Description
Product Description
The 1756-N2 from Allen-Bradley is a mechanical slot filler designed for unused positions within ControlLogix 1756 chassis systems. This accessory module contains no active electronic circuitry and is used to maintain proper chassis protection, internal airflow stability, and mechanical integrity when expansion slots are vacant.
The Allen-Bradley 1756-N2 helps reduce contamination risks by shielding open chassis positions from airborne dust, debris, and accidental physical contact. It also assists in maintaining proper electromagnetic shielding and recommended spacing requirements within ControlLogix installations.
This slot cover is commonly installed during phased system expansions, temporary module removal, or when spare slots are reserved for future I/O additions.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley |
| Product Series | ControlLogix 1756 |
| Product Type | Empty Slot Filler Module |
| Model Number | 1756-N2 |
| Function | Chassis Slot Cover / Mechanical Placeholder |
| Chassis Compatibility | ControlLogix 1756 Chassis |
| Electrical Connection | None |
| Backplane Interface | No Backplane Connection |
| Electronic Components | Not Included |
| Material Construction | Industrial Molded Plastic |
| Enclosure Style | Open-Type |
| Installation Type | Standard 1756 Slot Mounting |
| Front Profile | Same Dimensions as Standard 1756 Module |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Relative Humidity | 5% to 95% Non-Condensing |
| Mechanical Resistance | Compatible with ControlLogix Chassis Shock and Vibration Ratings |
| Weight | 0.11 lbs |
Key Features
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Designed for unused ControlLogix chassis slots
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Helps maintain proper airflow circulation
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Reduces dust and contamination exposure inside the chassis
-
Supports EMC and shielding continuity
-
Assists with UL and CE spacing compliance requirements
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Quick installation into standard 1756 chassis positions
-
No configuration or electrical wiring required
-
Lightweight industrial-grade construction
Application Areas
The 1756-N2 is typically used in:
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Reserved future expansion slots
-
Temporary removal of I/O modules
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ControlLogix maintenance procedures
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Industrial control cabinets
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OEM machine control panels
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Process automation systems
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Retrofit and phased upgrade projects
Important Note
The 1756-N2 is a non-functional mechanical accessory only. It does not provide communication, I/O processing, or electrical connectivity. Some secondary source listings incorrectly reference communication ports; the slot filler itself contains no RS-232, RS-422, or RS-485 interfaces.
FAQ
Does the 1756-N2 contain any electronics?
No. The module is purely mechanical and does not include circuitry, connectors, or communication components.
What is the purpose of the slot filler?
It protects unused ControlLogix chassis slots while maintaining airflow and shielding integrity inside the control system.
Can the 1756-N2 connect to the ControlLogix backplane?
No. The module does not interface electrically with the backplane.
Is the slot filler required for unused chassis positions?
While not always mandatory, it is recommended to improve environmental protection and preserve proper airflow inside the chassis.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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